:root {
  color-scheme: dark;
  --bg:#07101e;
  --panel:#0d1829;
  --panel2:#111f33;
  --text:#f5f7fb;
  --muted:#8fa1b9;
  --line:#21324b;
  --accent:#4ca6ff;
  --accent2:#8d7bff;
  --ok:#35d07f;
  --warn:#ffb84d;
  --bad:#ff6470;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:radial-gradient(circle at 20% 0%,#10254a 0%,var(--bg) 35%);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text)}
button,input,select{font:inherit}
.hidden{display:none!important}
.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card{width:min(420px,100%);background:rgba(13,24,41,.94);border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:0 30px 80px rgba(0,0,0,.35)}
.brand-mark{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-weight:900;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 10px 30px rgba(76,166,255,.25)}
.brand-mark.small{width:38px;height:38px;border-radius:11px}
.login-card h1{margin:18px 0 4px}.login-card p{margin:0 0 24px;color:var(--muted)}
.login-card label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px}
.login-card input{width:100%;margin-top:7px;background:#08111f;border:1px solid var(--line);border-radius:10px;color:var(--text);padding:12px 13px;outline:none}
.login-card input:focus{border-color:var(--accent)}
.login-card button{width:100%;margin-top:18px;border:0;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;padding:12px;font-weight:750;cursor:pointer}
.form-error{min-height:20px;margin-top:12px;color:var(--bad);font-size:13px}
.topbar{position:sticky;top:0;z-index:5;display:flex;justify-content:space-between;gap:20px;align-items:center;padding:14px max(22px,calc((100vw - 1280px)/2));background:rgba(7,16,30,.84);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.06)}
.brand-row{display:flex;align-items:center;gap:12px}.title{font-weight:800}.subtitle{color:var(--muted);font-size:12px;margin-top:2px}.top-actions{display:flex;align-items:center;gap:10px}.top-actions select,.ghost{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:9px;padding:9px 11px}.ghost{cursor:pointer}
.chip{font-size:11px;font-weight:800;letter-spacing:.08em;border:1px solid var(--line);padding:7px 9px;border-radius:999px}.chip.online{color:var(--ok);border-color:rgba(53,208,127,.35);background:rgba(53,208,127,.08)}.chip.degraded{color:var(--warn);border-color:rgba(255,184,77,.35);background:rgba(255,184,77,.08)}.chip.offline{color:var(--bad);border-color:rgba(255,100,112,.35);background:rgba(255,100,112,.08)}.chip.unknown{color:var(--muted)}
.container{max-width:1280px;margin:auto;padding:28px 22px 50px}.hero-row{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:20px}.hero-row h2{margin:0;font-size:28px}.hero-row p,.last-seen{margin:6px 0 0;color:var(--muted);font-size:13px}
.kpi-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:16px}.kpi,.panel{background:linear-gradient(180deg,rgba(17,31,51,.95),rgba(13,24,41,.95));border:1px solid var(--line);border-radius:16px}.kpi{padding:18px}.kpi span{color:var(--muted);font-size:12px}.kpi strong{display:block;font-size:24px;margin:7px 0 2px}.kpi small{color:#6f839e}
.panel{padding:18px;margin-bottom:16px}.panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:12px}.panel-head h3{margin:0;font-size:16px}.panel-head p{margin:5px 0 0;color:var(--muted);font-size:12px}.ranges{display:flex;gap:5px;background:#08111f;border:1px solid var(--line);border-radius:9px;padding:4px}.ranges button{border:0;background:transparent;color:var(--muted);padding:6px 8px;border-radius:6px;font-size:11px;cursor:pointer}.ranges button.active{background:var(--panel2);color:var(--text)}
canvas{width:100%;display:block}.legend{display:flex;justify-content:center;gap:20px;color:var(--muted);font-size:12px;margin-top:8px}.legend i{display:inline-block;width:18px;height:2px;vertical-align:middle;margin-right:6px}.line-a{background:var(--accent)}.line-b{background:var(--accent2)}
.two-col{display:grid;grid-template-columns:1.5fr .8fr;gap:16px}.stats-card{height:100%}.stats-list{display:grid;gap:10px}.stats-list>div{display:flex;align-items:center;justify-content:space-between;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.06)}.stats-list>div:last-child{border-bottom:0}.stats-list span{color:var(--muted);font-size:13px}.stats-list strong{font-size:15px}.empty{text-align:center;padding:34px}.empty p{color:var(--muted)}
@media (max-width:980px){.kpi-grid{grid-template-columns:repeat(2,1fr)}.two-col{grid-template-columns:1fr}.topbar{align-items:flex-start}.top-actions{flex-wrap:wrap;justify-content:flex-end}}
@media (max-width:620px){.topbar,.hero-row,.panel-head{align-items:stretch;flex-direction:column}.top-actions{justify-content:flex-start}.kpi-grid{grid-template-columns:1fr 1fr}.container{padding:20px 14px 40px}.topbar{padding:12px 14px}.ranges{overflow:auto}.hero-row{align-items:flex-start}.last-seen{margin-top:0}.kpi strong{font-size:20px}}